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author | James Morris <james.l.morris@oracle.com> | 2014-11-19 21:32:12 +1100 |
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committer | James Morris <james.l.morris@oracle.com> | 2014-11-19 21:32:12 +1100 |
commit | b10778a00d40b3d9fdaaf5891e802794781ff71c (patch) | |
tree | 6ba4cbac86eecedc3f30650e7f764ecf00c83898 /arch/x86/boot/compressed/aslr.c | |
parent | 594081ee7145cc30a3977cb4e218f81213b63dc5 (diff) | |
parent | bfe01a5ba2490f299e1d2d5508cbbbadd897bbe9 (diff) |
Merge commit 'v3.17' into next
Diffstat (limited to 'arch/x86/boot/compressed/aslr.c')
-rw-r--r-- | arch/x86/boot/compressed/aslr.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/x86/boot/compressed/aslr.c b/arch/x86/boot/compressed/aslr.c index fc6091abedb..d39189ba7f8 100644 --- a/arch/x86/boot/compressed/aslr.c +++ b/arch/x86/boot/compressed/aslr.c @@ -183,12 +183,27 @@ static void mem_avoid_init(unsigned long input, unsigned long input_size, static bool mem_avoid_overlap(struct mem_vector *img) { int i; + struct setup_data *ptr; for (i = 0; i < MEM_AVOID_MAX; i++) { if (mem_overlaps(img, &mem_avoid[i])) return true; } + /* Avoid all entries in the setup_data linked list. */ + ptr = (struct setup_data *)(unsigned long)real_mode->hdr.setup_data; + while (ptr) { + struct mem_vector avoid; + + avoid.start = (u64)ptr; + avoid.size = sizeof(*ptr) + ptr->len; + + if (mem_overlaps(img, &avoid)) + return true; + + ptr = (struct setup_data *)(unsigned long)ptr->next; + } + return false; } |